I recently moved out of moms house and I paid $200 towards an iPhone and my mom paid the extra $100. Should I give phone to her or keep?

I recently moved out of moms house and I paid $200 towards an iPhone and my mom paid the extra $100. Should I give phone to her or keep? - 1

Keep it tf

I would say keep it. If it's about the money then pay her $100 back.